Observation of the Eckhaus Instability in Whispering-Gallery Mode Resonators
| Autor: | Gomila, Damià, Parra-Rivas, P., Colet, Pere, Coillet, Aurélien, Lin, Guoping, Daugey, Thomas, Diallo, Souleymane, Merolla, Jean-Marc, Chembo Kouomou, Yanne |
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| Přispěvatelé: | Institute for Cross-Disciplinary Physics and Complex Systems [Mallorca] (IFISC), Universitat de les Illes Balears (UIB)-Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Consejo Superior de Investigaciones Científicas (España), Centre National de la Recherche Scientifique (France), European Commission, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Research Council, Centre National D'Etudes Spatiales (France), University of Maryland |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Condensed Matter - Other Condensed Matter
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] [NLIN.NLIN-PS]Nonlinear Sciences [physics]/Pattern Formation and Solitons [nlin.PS] FOS: Physical sciences Physics::Optics Pattern Formation and Solitons (nlin.PS) [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] Nonlinear Sciences::Pattern Formation and Solitons Nonlinear Sciences - Pattern Formation and Solitons Other Condensed Matter (cond-mat.other) Optics (physics.optics) Physics - Optics |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | The Eckhaus instability is a secondary instability of nonlinear spatiotemporal patterns in which high-wavenumber periodic solutions become unstable against long-wavelength perturbations. We show in this letter that this instability can take place in Kerr combs generated with ultra-high Q whispering-gallery mode resonators. In our experiment, sub-critical Turing patterns undergo Eckhaus instabilities upon changes in the laser detuning leading to cracking patterns with long- lived transients. In the spectral domain, this results in a metastable Kerr comb dynamics with a timescale as large as few seconds. This ultra-slow timescale is at least six orders of magnitude larger than the intracavity photon lifetime, and is in sharp contrast will all the transient behaviors reported so far in dissipative nonlinear optics, that are typically only few photon lifetimes long (microseconds). We show that this phenomenology is well explained by the Lugiato-Lefever model, as the result of an Eckhaus instability. Our theoretical analysis is found to be in excellent agreement with the experimental measurements. D. G. and Y. K. C would like to acknowledge sup-port from the project ND-PHOT jointly funded by CSIC and CNRS. D. G. and P.C. acknowledge financial support from Agencia Estatal de Investigación (AEI,Spain) and Fondo Europeo de Desarrollo Regional un-der Project SuMaEco, grant number: RTI2018-095441-B-C22 (AEI/FEDER,UE) and Agencia Estatal de Investigación through María de Maeztu Program for Units o fExcellence in R&D (MDM-2017-0711). Y. K. C. also ac-knowledges funding from the European Research Council through the projects NextPhase & Versyt, from the Centre National d’Etudes Spatiales(CNES) through the project SHYRO, and from the University of Maryland. |
| Databáze: | OpenAIRE |
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